Picker-check for looms



(No Model.)

F. B. KILBORN 8B A. B. TAPLIN.-

PIGKER CHECK FOR LOOMS.

Patented Aug. 13,1895.

E F I w J WITNESSES:

4 'INVENTEIRSi UNITED STATES PATENT OFFICE.

FRANK B. KILBORN ANDALDEN B. TAPLIN, OF LA\VRENCE, MASSACHUSETTS.

PlCKER-CHECK FOR LOO MS.

SPECIFICATION forming part of Letters Patent No. 544,467, dated August1-3, 1895. Application filed April 1, 1895;. Serial No. 543,995- (Nomodel.)

have invented certain new and useful I111 provements in'Picker-Ohecksfor Looms, of which the following-is a specification,

This invention relates to an improvement in picker-checks; and itconsistsin the novel features of construction and relative arrangementof parts hereinafter fully described in the specification, clearlyillustrated in the drawings, and particularly pointed out in the claims.

Reference is to be had to the accompanying one sheet of drawings, inwhich like characters indicate like parts wherever they occur.

In the drawings, Figure l is a rear elevation of a picker-check made inaccordance with our invention. Fig. 2 is a side elevation of apicker-check made in accordance with our invention. Fig. 3 is a crosssectio'n taken on the line 3 3 of Fig. 2,1ooking in the direction of thearrow. Fig. 4 is a section taken on the line 4 4 of Fig. 2, looking inthe direction of the arrow.

a represents a casting forming a suitable framework or support for thevarious parts of the device and constructed for ready attache ment tothe lay of the loom.

b represents a strap secured at one end by a screw 1) to a lug aprojecting'from the framework. This strap passes over ashoe orfriction-block a and is secured at its other end by a screw b to amemberc, pivoted to the framework. This member is, as shown, a spindle,although any other pivoted construction may be employed. This member 0has a hub o, mounted in a suitable bearing in the framework or. This hubis preferably of less diameter than the part of the member to which thestrap is attached, in order to prevent movement of the member to theleft in Fig. 4. This member has also a squared portion 0 extending uponthe opposite side of the framework from that where the strap isattached. Upon this squared portion 0 there is mounted a sleeve csuitably apertured to fit said squared portion. A ratchet-wheel h isalso mounted on'the end of this squared portion 0 The end of this memberhas a reduced circular portion 0 upon which is mounted a head f, andsecured to said circular portion by a screw f and a washer f. A pawl fis secured to this head by a screw f and arranged to engage the teeth ofthe ratchetwheel h. This pawl is preferably double, as

shown, in order to have one member projecting in the vicinity of theperiphery of the head for purposes of manipulation. A spiral spring e ismounted upon this sleeve, one end resting against a lug a projectingfrom the framework, and its other end secured to the head f by passingthrough an aperture e in said head. This head is cast with a projectingflan ge f 5 to partially cover said ratchet-wheel, the flange being cutaway for the portion occupied by the pawl. The framework is also castwith a flange a projecting over the strap at the part of the frameworkoccupied by the member a and the shoe a.

The strap'b has affixed to its central portion a bearing-piece b bymeans of a screw b or in any other well-known way. The attachment isapplied to the loom in position to locate the bearing-piece directlybehind the picker, so that when the shuttle strikes the picker thebearing piece or plate will be cushioned by the strap and the turning ofthe member 0 against the tension upon the spring. The bearing-piece b isof sufficient extent to prevent the strap taking over or binding thecorners of the picker, as it would do in the absence of some suchprovision. The tension upon the spring may be adjusted at will byturning the head f, thus carrying the pawl around behind the stationaryratchet-wheels. It will be observed that this spring tends to rotate themember 0 in a direction to hold the strap b taut.

The shoe or friction-piece a over which the strap passes assistsinmaintaining the strap in proper position, and at the same time, bymeans of friction, tends to resist the inward movement of the strap 17when struck by the picker. This is a valuable feature, since thereby weare enabled to dispense with a heavy spring. But for this shoe thespring e would have to be quite stiff, and consequently difficult ofmanipulation by means of the head. With a light spring and the shoe theblows delivered upon the strap are resisted much more efficiently thanwith a heavy spring and the shoe omitted. j

ICO

Having th us explained the nature of our invention and described a wayof constructing and using the same, though without attempting to setforth all of the forms in which it may be made or all of the modes ofits use, what we claim, and desire to secure by Letters Patent, is g 1.A picker check for looms comprising in its construction a suitableframework orsupport, a strap fixed at one end to said support, a pivotedmember to which the other end of said strap is attached, and a springarranged to actuate said member in the direction to hold said straptaut, substantially as and for the purpose set forth.

2. A picker check for looms comprising in its construction a strap fixedat one end and having a bearing-piece to receive the impact of thepicker, and a pivoted spring-actuated member supporting the other end ofsaid strap, substantially as and for the purpose set forth.

3. A picker check for looms comprising in its construction a suitableframework or support, a member pivotally mounted in said framework, astrap fixed at one end to said framework and at its other end to saidmemher, and a shoe over which said strap passes, a spring arranged toactuate said member in a direction to hold the strap taut, and means foradjusting said spring, substantially as and for the purpose set forth. 4

4-. A picker check for looms comprising in its construction a suitableframework, a member rotativ'ely mounted in said framework provided witha squared portion (0 and a circular portion (0 a sleeve andaratchet-wheel mounted upon said squared portion, a head loosely mountedon a circular portion of said member, adjacent to said ratchetwheel aspiral spring mounted upon said sleeve, one end of said spring engaginga lug on said framework, the other end of said spring be ing secured tosaid head, a pawl on said head arranged to engage said ratchet-wheel astrap fixed at one end to said framework and secured at its other end tosaid member, and a shoe over which said strap passes, substantially asand for the purpose set forth.

In testimony whereof we havesigned our names to this specification, inthe presence of two subscribing witnesses, this 27th day of March, A. D.1895.

FRANK l5. 'KILBORN. ALDEN B. 'lAPLlN.

\Vitnesses:

WALTER B. FowLER, HENRY F. HoPKINs.

